We're dividing 428907 by 18 
Our goal is to divide 428907 by 18.

Going ahead to step 1:
The number 18 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 18

Moving on to step 2:
When dividing 42 by 18, we get 2 with a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 36 from 42 to get 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 18

Moving on to step 3:
18 can be fit into 68 3 times, resulting in a remainder of 14.
Put 3 as the next digit of the answer. 
Result so far: 23.0
The remainder is 14 after subtracting 54 from 68.
Bring next digit (9) of the dividend behind the 14 and repeat the process: 149 / 18

Moving on to step 4:
18 can be fit into 149 8 times, resulting in a remainder of 5.
Put 8 as the next digit of the answer. 
Result so far: 238.0
Subtracting 144 from 149 leaves us with 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 18

Moving on to step 5:
18 goes into 50 2 times with a remainder of 14.
The next digit of our result is 2. 
Result so far: 2382.0
If we take 36 away from 50, we end up with 14.
Grab the next digit (7) from the dividend, add it to 14, then carry on: 147 / 18

On to step 6:
When dividing 147 by 18, we get 8 with a remainder of 3.
The number 8 becomes the next digit in our result. 
Result so far: 23828.0
The remainder is 3 after subtracting 144 from 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 7:
The number 18 fits into 30 1 times, leaving a remainder of 12.
The next digit of our result is 1. 
Result so far: 23828.1
The remainder is 12 after subtracting 18 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 8:
120 divided by 18 is 6 with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 23828.16
The remainder is 12 after subtracting 108 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 9:
When dividing 120 by 18, we get 6 with a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 23828.166
Subtracting 108 from 120 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 23828.166 and a remainder of 0.0012.